WordPress SEO by Yoast Breadcrumbs

I would like to use/activate the breadcrumb feature with this plugin, rather than installing a new/different breadcrumb plugin.

Where do I insert the code? Which code?
Where do I insert it in the theme? Which template?
I’m using WP Weaver. Is it the Theme Functions template (functions.php)?

Usage of this breadcrumbs feature is explained here. For the more code savvy,insert this in your theme:

<?php if ( function_exists(‘yoast_breadcrumb’) ) {
yoast_breadcrumb(‘<p id=”breadcrumbs”>’,'</p>’);
} ?>

or, this code from the plugin page???

<?php if ( function_exists(‘yoast_breadcrumb’) ) {
yoast_breadcrumb(‘<p id=”breadcrumbs”>’,'</p>’);
} ?>

Thanks
Andrew